A级毛片毛片免费观看久潮喷,国模冰莲极品自慰人体,调教玩弄奶头乳夹开乳震动器,中文字幕人妻熟女在线视色爱,亚洲色丰满少妇高潮18p

Name:Drometrizde trisiloxane

CAS NO:155633-54-8

Molecular formula:C₂₄H₃₉N₃O₃SI₃

Molecular weight:501.841

Purity(%):99

Melting point(°C):49°C

Application: An ultraviolet absorber used in the production of cosmetics.